The quickest most cost effective way to improve the ride and handling of a straight axle vehicle is to install a set of RCD Bilstein Hot Rod Shocks. All shocks are not created equal.
The illustrations below show how a RCD Classics Bilstein Shock is designed. This often is the thing you won't see from competitors shocks, what is actually inside the shock and how it works.

Digressive Working Piston Assembly - The piston head design allows independent tuning of the compression and rebound damping forces to provide optimum ride comfort and performance without compromise. It features fewer parts than most conventional twin tube and so call "adjustable" shock designs. This simple, yet exceptional functional digressive design contributes to the extreme durability and long life of Bilstein Shock Absorbers.
The photo below dramatically illustrates the size difference between the working piston inside a Bilstein monotube shock and one found in a typical "twin tube" shock.
The Bilstein has a 228% larger surface than the average conventional twin tube piston offering greater sensitivity and superior vehicle control.
MONO TUBE VS. TWIN TUBE DESIGN

Features:
Shocks have 7/16" top bushing and 5/8" bottom bushings. The sleeves I.D. is 3/4" so if you remove the metal sleeve the hole will be 3/4". Designed, Built and
Valving Specific for straight axle vehicle
Available in 3 lengths
Chrome Finish
Now Available with Chrome Covers (+$75)
Hard Chromed Piston Rod
Mono Tube Design, means a much larger working piston diameter
Independent Compression and Rebound Valving, to soften the ride and control the bounce
1.42" Piston Diameter
No Springs or Check Valves to wear out, gives you years of trouble free service without performance loss
Separated dividing piston holds pressure on the oil to prevent aeration (foaming) that leads to performance loss
The last shock you will ever have to buy
Limited Lifetime Warranty
Available Sizes: Please choose size from the drop down menu when ordering.
| Part Number: | Extended Length | Collapsed Length | Top Bushing | Bottom Bushing |
| 55-R048 | 11.8 | 8.3 | 7/16" | 5/8" |
| 55-R051 | 13.1 | 9.3 | 7/16" | 5/8" |
| 55-R049 | 14.6 | 9.8 | 7/16" | 5/8" |